If you love art just do it. Explore different media, different expressions. Try painting, try design, try printing techniques, try drawing, try whatever comes to your mind. The more you do it, the more you develop your skills and learn about the process, and with that, more creative ideas will come. When you have acquired some experience and knowledge about art you will know if a major is or is not for you. I've been corresponding with a lot of good artists from around the world and most of them never studied art. I've done some exhibitions myself and never attended art classes. (except for certain printmaking workshops). I'm in my 30s now and still don't know what to do with my life. I just know I can't stop creating art. It's a part of me. It heals my soul. No major required. :D And like you, I love making DIY things. ^_^